Fins - Complete with 7mm fins are faster and have less drag than ordinary fins. ABS Sidewalls - for a smoother feel in the water Triax-Epoxy-PVC Core - Makes the boards light and strong with controlled flex pattern making for a more lively feel and more increased "pop" capability. Will not absorb water. Inserts - Offset inserts for tweaked footstrap placement and 100% nickel plated brass inserts for rust-free riding - guaranteed not to pull out. Bomber Durasurf Seams - CMC-CAP construction makes a much stronger bond in the seam. Enhanced impact strength of Durasurf / Glass / Epoxy Composite and Durasurf skin on the top and bottom. Fin Drill-outs - Hard plastic inserts for fin drill-outs for a solid fin mount. Graphics - Unscratchable graphics. Concave Bottom - For a smooth ride and increased edge grip.